“Open-source databases, such as Ingres, MySQL, and PostgreSQL, continue to expand their features and functionality, providing viable alternatives that can support most small to moderately sized business applications,” wrote an analyst with Forrester. And the open source market continues to grow; however open source databases provide unique security challenges to the companies using them.
Some of the biggest open source databases include their own security features, but, aside from MySQL which is supported by Imperva and Guardium, most seem to be simply ignored by the security industry. Open source databases could also be more vulnerable to SQL injection due to their frequent use with homegrown or other open source applications.